Application of Fractional-order Differentials in Enhancing Vestige Images of Crime Scene
After their criminal acts, crime offenders generally leave vestige evidences on the crime scene. To deal with the blurred fingerprints collected from the crime scene, this paper proposes an approach of the 7 *7 Fractional Order Differential (FOD) cover operator. Through comparing the enhanced effects of such different differentials order, the paper proves that, this image enhancement approach based on FOD cover operator can significantly enhances the true features of the fingerprint image, instead of adding any pseudo features. It overcomes the . distortion incurred the original fingerprints processed.by traditional image processing software. As indicated in our experiment results, we compare the enhanced effect of fingerprints with Butterworth high pass filter, and find it easy to obtain natural features of the fingerprint, without evident noise . of fingerprint images. The fingerprint image processed by this approach reveals a number of advantages such as higher definition and better applicability.
Fractional-Order Differential Cover Operator Image Enhancement Effects Compared Criminal Investigation Technology
Gang WANG Jiliu ZHOU Zhuzhong YANG Xingchun YAN
College of Computer Science,Sichuan University, Chengdu Sichuan 61065 Sichuan Police College/ Police College of Computer Science,Sichuan University, Chengdu Sichuan 61065 School of Electronics Information Engineering, Chengdu University, Chengdu Sichuan 610106 GSichuan Police College/ Police Officer Training Base of Sichuan Police Bureau/, Luzhou Sichuan 6460
国际会议
重庆
英文
295-298
2011-08-20（万方平台首次上网日期，不代表论文的发表时间）